[Android] Fix crash on the VideoBrowserFragment currentFragment call

[Nicolas Pomepuy]

vlc-android | branch: master | Nicolas Pomepuy <nicolas at videolabs.io> | Fri Oct 21 11:37:39 2022 +0200| [9757ca2d423f179c73fec25fa04ac23aa3f01696] | committer: Nicolas Pomepuy

Fix crash on the VideoBrowserFragment currentFragment call

> https://code.videolan.org/videolan/vlc-android/commit/9757ca2d423f179c73fec25fa04ac23aa3f01696
---

 .../videolan/vlc/gui/video/VideoBrowserFragment.kt   | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/application/vlc-android/src/org/videolan/vlc/gui/video/VideoBrowserFragment.kt b/application/vlc-android/src/org/videolan/vlc/gui/video/VideoBrowserFragment.kt
index 9b489c0ad..14e404cef 100644
--- a/application/vlc-android/src/org/videolan/vlc/gui/video/VideoBrowserFragment.kt
+++ b/application/vlc-android/src/org/videolan/vlc/gui/video/VideoBrowserFragment.kt
@@ -196,23 +196,29 @@ class VideoBrowserFragment : BaseFragment(), SwipeRefreshLayout.OnRefreshListene
      *
      * @return the current shown fragment
      */
-    private fun getCurrentFragment() = childFragmentManager.fragments.find{ it is Filterable && it.isResumed } as Filterable
+    private fun getCurrentFragment() = childFragmentManager.fragments.find{ it.isResumed }
 
     override fun getFilterQuery() = try {
-        getCurrentFragment().getFilterQuery()
+        (getCurrentFragment() as? Filterable)?.getFilterQuery()
     } catch (e: Exception) {
         null
     }
 
-    override fun enableSearchOption() = getCurrentFragment().enableSearchOption()
+    override fun enableSearchOption() = (getCurrentFragment() as? Filterable)?.enableSearchOption() ?: false
 
-    override fun filter(query: String) = getCurrentFragment().filter(query)
+    override fun filter(query: String) {
+        (getCurrentFragment() as? Filterable)?.filter(query)
+    }
 
-    override fun restoreList() = getCurrentFragment().restoreList()
+    override fun restoreList() {
+        (getCurrentFragment() as? Filterable)?.restoreList()
+    }
 
-    override fun setSearchVisibility(visible: Boolean) = getCurrentFragment().setSearchVisibility(visible)
+    override fun setSearchVisibility(visible: Boolean) {
+        (getCurrentFragment() as? Filterable)?.setSearchVisibility(visible)
+    }
 
-    override fun allowedToExpand() = getCurrentFragment().allowedToExpand()
+    override fun allowedToExpand() = (getCurrentFragment() as? Filterable)?.allowedToExpand() ?: false
 
 
 }